更多"Scientists do not know ________.A. "的相关试题:
[单项选择]Why do factories want to know how people feel about different colors
A. People care more about the colors of things than shapes.
B. People choose to buy things by their colors.
C. People like things with bright colors.
[单项选择]Do you know how the war ______.
A. wins
B. won
C. was won
D. had won
[单项选择]Do you know how much the ______ family spends on food in the urban area
A. normal
B. general
C. usual
D. average
[单项选择]How do botanists know that root pressure is not the only force that moves water in plants
[单项选择]How do you know that the oil pressure is a bit low
A. The warning light flashes only when the car runs at fast speed.
B. The warning light flashes only when the car is slowing down.
C. The warning light flashes continuously.
D. The warning light flashes when the engine idles.
[单项选择]How do you know which bus to take if one goes somewhere
A. A sign.
B. A drawing.
C. A bus.
D. A hut.
[单项选择]
—How do you know that she likes singing ？
—I often hear her （） after class.
A. to sing
B. sang
C. sing
D. sings
[单项选择]—The boy is Telling a lie.—How do you know —His face has given him
A. off
B. up
C. away
D. out
[单项选择]How do we explain this variation, and how do we explain the __________ of this adaptation from one generation to another
A. transmission
B. transfer
C. transformation
D. transportation
[单项选择]You need to know how to work with computers.
[单项选择]How do you know ______ direction ______
A. which; driving
B. which; to drive to
C. in which; to drive
D. /; flying to
